Title :
UWB Fast-Hopping Frequency Generation Based on Sub-Harmonic Injection Locking
Author :
Dal Toso, Stefano ; Bevilacqua, Andrea ; Tiebout, Marc ; Marsili, Stefano ; Sandner, Christoph ; Gerosa, Andrea ; Neviani, Andrea
Author_Institution :
Dipt. di Ing. dell´´lnformazione, Univ. di Padova, Padova
Abstract :
Sub-harmonic injection locking is employed to generate the fast-hopping carriers required in UWB systems for WiMedia . A very small area 90-nm CMOS prototype synthesizes the frequencies of band group #6 with a hop time shorter than 4 ns . It occupies 0.074 mm2 and draws 30 mA from a 1.2 V supply. Phase noise at 8.71 GHz is -112 dBc/Hz at 1 MHz offset. The design is supported by a thorough analysis that emphasizes the tradeoffs in the parameters of the proposed system.
Keywords :
CMOS integrated circuits; frequency hop communication; frequency synthesizers; ultra wideband communication; CMOS prototype synthesizes; UWB fast hopping frequency generation; WiMedia; current 30 mA; fast hopping carriers; frequency 8.71 GHz; size 90 nm; sub harmonic injection locking; voltage 1.2 V; Coherence; Energy consumption; Frequency synthesizers; Injection-locked oscillators; Local oscillators; OFDM modulation; Phase noise; Prototypes; Time frequency analysis; Transmitters; Injection locked oscillators; MB-OFDM; frequency synthesizers;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2008.2005702
